Section 3. Illustrated Parts List
1. Explanation of Parts List Arrangement
The parts list is arranged so that the illustration will appear on a left-hand page and the applicable parts
list will appear on the opposite right-hand page. Unless the list is unusually long, the user will be able to
look at the illustration and read the parts list without turning a page.
2. Symbols and Abbreviations
The following is a list of symbols and abbreviations used in the parts list:
* - Item not illustrated
A, or AMP - Ampere
AC - Alternating current
AR - As required
DC - Direct current
Fig. - Figure
hd. - Head
hex - Hexagon
Hz - Hertz (cycles-per-second)
I.D. - Inside diameter
IN - Inch
KVA - Kilovolt-ampere
uF - Microfarad
No. - Number
NHA - Next higher assembly
PRV - Peak reverse voltage
PSI - Pounds per square inch
Ref - Reference (the item has been listed previously)
TM - Technical Manual
T-R - Transformer-rectifier
V - Volt (when used as a prefix to a five-digit number, indicates vendor code)
NOTE:
An item which does not reflect an index number is a assembly which is not illustrated in its
assembled state, or it is similar (right-hand, left-hand, top, etc.) to an item which is illustrated.
OM-2084 / Operation and Maintenance Manual
90CU24 / Series 500392 / Generator Set
November 27/1997
Chapter 4-3
Revised 10/28
Page 1